ed is a line-oriented text editor that was popular in the early days of Unix. Although it's not as widely used today as more modern text editors like vi or emacs, it's still available on many systems and is sometimes used for scripting purposes. ... Read More

sed (short for stream editor) is a great tool to quickly and efficently edit text files, this article is a full tutorial of how to use sed from a beginner level to an advanced one, I believe that this article will show you some of the magic of sed command... Read More

in this 7th part of this tutorial series about PHP object oriented programmig, we will add a very important part of any website, an input field to search the website, in this particular website the input search field will help us search the wallpapers and we will add an autocomplete component using jquery-ui... Read More

In this tutorial we will make a class that will make the connection to our sql server. and all other classes will inherit it and extend it for more features. For all our database operations we will use prepared statements as they are more secure against mysql injection.... Read More

Create professional exams with LaTeX using the exam document class. Learn how to customize question types, include solutions, and toggle between student and correction views.... Read More